☑ Resistor And Resistance

The resistors ability to reduce the current is called resistance and is measured in units of ohms symbol. The resistance is a property of a material to oppose the flow of electric current.

Us 1 89 5 Off Best Price 50pcs Resistor Pack 47 Ohm 2w Metal Film Resistor Resistance 1 Diy Kit Free Shipping In Resistors From Electronic

What Is The Reasoning Behind Calculating The Resistance

Sichrome Resistor Info

Resistor symbols the amount of resistance a resistor has is determined by the relationship of the current through it to the voltage across it which determines whether the circuit element is a good conductor low resistance or a bad conductor high resistance.

Resistor and resistance. The value is often printed on the resistor with a number or in the form of a color code. As against the unit of capacitance of a capacitor is farads. Resistance is the electric property that impedes a current.

Resistor tolerance is a measure of the resistors variation from the specified resistive value and is a consequence of the manufacturing process and is expressed as a percentage of its nominal or preferred value. If we make an analogy to water flow through pipes the resistor is a thin pipe that reduces the water flow. A current flowing through a wire or resistor is like water flowing through a pipe and the voltage drop across the wire is like the pressure drop which pushes water through the pipe.

The unit of resistance of a resistor is ohms. Some materials have a higher resistivity causing a higher value. The resistance of a resistor is dependent on its material and shape.

Resistors are majorly used in precision circuits radio frequency and logic circuits etc. What is the difference between resistance and resistor. Excessive power dissipation may raise the temperature of the resistor to a point where it can burn the circuit board or adjacent components or even cause a fire.

This is distinct from the reversible change in resistance due to its temperature coefficient when it warms. Typical resistor tolerances for film resistors range from 1 to 10 while carbon resistors have tolerances up to 20. The resistor is an electrical circuit component with a fixed resistance value that used to control current through the element or the potential difference across the element.

If the average power dissipated by a resistor is more than its power rating damage to the resistor may occur permanently altering its resistance.